In this picture taken on Sunday, Nov. 27, 2016, Mercedes driver Nico Rosberg of Germany celebrates in the team garage after winning the F1 2016 Championship in the Emirates Formula One Grand Prix at the Yas Marina racetrack in Abu Dhabi, United Arab Emirates. Rosberg's announcement on Friday, Dec. 2, 2016 that he was retiring at the age of 31, five days after earning his first Formula One world championship, shocked the world of motor racing. (AP Photo/Luca Bruno)